CN219476373U - Armored low-smoke fire-resistant aluminum alloy cable for ship - Google Patents

Abstract

The utility model discloses a low-smoke fire-resistant aluminum alloy cable for armored ships, which comprises three power supply wire cores and a PPS resin filling core material which are twisted together to form a cable core, wherein the outside of the cable core is sequentially coated with a nylon tape wrapping layer, a high-temperature glass fiber inner wrapping layer, an aluminum alloy armor layer, a high-temperature glass fiber inner wrapping layer and a silane grafted crosslinked high-density polyethylene outer sheath, the power supply wire cores comprise an aluminum alloy conductor, a high-temperature fireproof tape wrapping layer and a low-smoke fire-resistant composite insulating layer, the low-smoke fire-resistant composite insulating layer sequentially comprises a polyester non-woven fabric layer, an aromatic polyimide isolation layer and an XLPE insulating layer from inside to outside, the thickness of the low-smoke fire-resistant composite insulating layer is not less than 0.6mm, and the thickness of the XLPE insulating layer is not less than 0.5mm. The power cable has the advantages of low smoke zero halogen flame retardance, better fire resistance, enhanced safety and reliability, environmental friendliness and recycling.

Description

Armored low-smoke fire-resistant aluminum alloy cable for ship

Technical Field

The application belongs to the technical field of cables, and particularly relates to an armored marine low-smoke fire-resistant aluminum alloy cable.

Background

The marine cable comprises a marine power cable, a marine control cable and a marine communication cable, and is mainly applied to power, illumination and general control of various ships in the river and the sea, offshore oil platforms and other water buildings. With the rapid development of the river and ocean transportation industry and ocean engineering, various ships, offshore oil platforms and the like are continuously increased, and the technical requirements of various equipment on cables are increasingly improved. The marine cable needs to meet the requirements of excellent electrical and mechanical properties and the like, special requirements of shipbuilding units and use departments on the performance of the marine cable, the common power cable cannot be directly replaced, the marine cable needs to have safer and more reliable electrical properties and fire resistance than the common cable, the use safety of the cable is ensured, and the design of the green and environment-friendly cable is considered, so that the abandoned power cable can be recycled, and natural environment is not polluted.

Disclosure of Invention

The application aims at the defects of the prior art, and the technical problem to be solved is to provide the armored marine low-smoke fire-resistant aluminum alloy cable which has low smoke zero halogen flame retardance, better fire resistance, enhanced safety and reliability, green and recycling.

The technical problems are solved by the following technical scheme.

The utility model provides a marine fire-resistant aluminum alloy cable of low smoke of armor formula, includes three power core and PPS resin filling core strand jointly and constitutes the cable core, the outside cladding of cable core has nylon tape around covering, high temperature glass fiber in proper order in the line around covering, aluminum alloy armor, high temperature glass fiber in the line around covering and silane grafting crosslinked high density polyethylene oversheath, the power core includes aluminum alloy conductor and cladding in proper order the outside high temperature fire-proof strip around covering of aluminum alloy conductor and low smoke and fire-resistant composite insulation layer, low smoke and fire-resistant composite insulation layer includes polyester non-woven fabrics layer, aromatic polyimide isolation layer and XLPE insulating layer from interior to exterior in proper order, low smoke and fire-resistant composite insulation layer thickness is not less than 0.6mm, XLPE insulating layer thickness is not less than 0.5mm.

Preferably, the thickness of the low smoke flame-retardant composite insulating layer is not more than 2mm.

Preferably, the thickness of the polyester nonwoven fabric layer is 0.05mm to 0.08mm, and the thickness of the aromatic polyimide isolating layer is 0.02mm to 0.04mm.

Preferably, the aluminum alloy conductor is formed by twisting and compacting a plurality of aluminum alloy wires with the diameters of 0.08mm to 0.35mm to form a circular conductor structure.

Preferably, the nylon tape wrapping layer is a nylon resin tape covering wrapping structure and the covering rate is 15-20%.

Preferably, the nylon tape wrapping layer has a thickness of 0.2mm to 0.5mm.

Preferably, the high-temperature glass fiber wire inner wrapping layer and the high-temperature glass fiber wire inner wrapping layer are formed by a plurality of high-temperature glass fiber wires in parallel spiral wrapping mode and are opposite in wrapping direction.

Preferably, the high-temperature fireproof belt wrapping layer is a high-temperature fireproof belt unidirectional spiral lapping and wrapping structure, and the high-temperature fireproof belt is a polyethylene resin inner layer and mica tape layer bonding integrated structure.

Preferably, the cable core has a lay length 10 to 15 times the outer diameter of the power supply core.

The beneficial effects of this application:

1. the environment-friendly design of the cable is met, the cable core material meets the EU ROHS instruction, the environment-friendly cable meets the requirement of the environment-friendly cable, no harmful substances to human health are contained, the cable does not release smoke in flame of combustion, no toxic gas is released, the discarded cable can be fully recycled, and the environment is not polluted and can be subjected to regeneration treatment.

2. The insulating wire core adopts the high-temperature fireproof tape wrapping layer and the low-smoke flame-retardant composite insulating layer, and the high-temperature fireproof tape wrapping layer has better fireproof and heat-insulating effects and slows down heat conduction to the low-smoke flame-retardant composite insulating layer. The low smoke flame-retardant composite insulating layer is of a three-layer integrated structure, when the cable fires and burns, the polyester non-woven fabric layer fully burns, the aromatic polyimide isolation layer has the effect of isolating smoke, the aromatic polyimide isolation layer has the characteristics of high temperature resistance and flame retardance, the burning smoke can be prevented from being scattered out of the cable, and the low smoke type flame-retardant power cable with excellent performance is realized. The PPS resin filling core material has good heat resistance and high mechanical strength, and meanwhile, the fire resistance and flame retardance are improved through the inner and outer wrapping layers of the high-temperature glass fiber wires, so that the time for heat conduction to the inside is effectively prolonged, the inside temperature is reduced, and the safety and reliability of the cable are improved.

3. Mechanical strength is guaranteed through the aluminum alloy armor, simultaneously, the inner side and the outer side of the aluminum alloy armor are provided with the inner and outer winding layers of the high-temperature glass fiber wires, so that local stress concentration of the armor is reduced, torque force during bending is reduced, flexibility and tensile resistance of the armor are improved, stability of electrical characteristics is enhanced, safety and reliability of a cable are improved, and the cable is durable to use.

Drawings

Fig. 1 is a schematic cross-sectional structure of an embodiment of the present application.

Reference numerals illustrate:

the cable comprises a 1-power wire core, a 2-PPS resin filled core material, a 3-nylon tape wrapping layer, a 4-high-temperature glass fiber inner wrapping layer, a 5-aluminum alloy armor layer, a 6-high-temperature glass fiber outer wrapping layer, a 7-silane grafted crosslinked high-density polyethylene outer sheath, an 8-aluminum alloy conductor, a 9-high-temperature fireproof tape wrapping layer, a 10-polyester non-woven fabric layer, an 11-aromatic polyimide isolation layer and a 12-XLPE insulating layer.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Referring to fig. 1, the armored marine low-smoke fire-resistant aluminum alloy cable of the embodiment of the application comprises three power supply wire cores 1 and a PPS resin filling core material 2 which are twisted together to form a cable core, wherein the twisting distance of the cable core is 10 to 15 times of the outer diameter of the power supply wire cores 1. The power wire core 1 comprises an aluminum alloy conductor 8 and a high-temperature fireproof belt wrapping layer 9 and a low-smoke flame-retardant composite insulating layer which are sequentially wrapped outside the aluminum alloy conductor 8, and specifically, the aluminum alloy conductor 8 is formed by stranding and compacting a plurality of aluminum alloy wires with diameters of 0.08-0.35 mm. The high-temperature fireproof belt wrapping layer 9 is of a high-temperature fireproof belt unidirectional spiral covering and wrapping structure, and the high-temperature fireproof belt is of an integrated structure formed by bonding a polyethylene resin inner layer and a mica tape layer. The low-smoke flame-retardant composite insulating layer sequentially comprises a polyester non-woven fabric layer 10, an aromatic polyimide isolating layer 11 and an XLPE insulating layer 12 from inside to outside, wherein the thickness of the polyester non-woven fabric layer 10 is 0.05mm to 0.08mm, and the thickness of the aromatic polyimide isolating layer 11 is 0.02mm to 0.04mm. The thickness of the low-smoke flame-retardant composite insulating layer is not less than 0.6mm, the thickness of the XLPE insulating layer 12 is not less than 0.5mm, and further, the thickness of the low-smoke flame-retardant composite insulating layer is not more than 2mm.

The cable core is sequentially coated with a nylon tape wrapping layer 3, a high-temperature glass fiber inner wrapping layer 4, an aluminum alloy armor layer 5, a high-temperature glass fiber outer wrapping layer 6 and a silane grafted crosslinked high-density polyethylene outer sheath 7, and in one embodiment, the nylon tape wrapping layer 3 is of a nylon resin tape covering wrapping structure, the covering rate is 15-20%, and further, the thickness of the nylon tape wrapping layer 3 is 0.2-0.5 mm. In one embodiment, the high-temperature glass fiber inner wrapping layer 4 and the high-temperature glass fiber outer wrapping layer 6 are formed by spirally wrapping a plurality of high-temperature glass fiber wires in parallel and have opposite winding directions.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (9)

1. The utility model provides a marine low smoke and fire-resistant aluminum alloy cable of armor, characterized by: including three power core (1) and PPS resin packing core (2) transposition jointly constitute the cable core, the outside cladding of cable core has nylon tape around covering (3), high temperature glass fiber in-line around covering (4), aluminum alloy armor (5), high temperature glass fiber outside around covering (6) and silane grafting crosslinked high density polyethylene oversheath (7) in proper order, power core (1) include aluminum alloy conductor (8) and cladding in proper order outside high temperature fire-resistant belt around covering (9) and low smoke and fire-resistant composite insulation layer of aluminum alloy conductor (8), low smoke and fire-resistant composite insulation layer includes polyester non-woven fabrics layer (10), aromatic polyimide isolation layer (11) and XLPE insulating layer (12) from interior to exterior in proper order, low smoke and fire-resistant composite insulation layer thickness is not less than 0.6mm, XLPE insulating layer (12) thickness is not less than 0.5mm.

2. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the thickness of the low-smoke flame-retardant composite insulating layer is not more than 2mm.

3. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the thickness of the polyester non-woven fabric layer (10) is 0.05mm to 0.08mm, and the thickness of the aromatic polyimide isolating layer (11) is 0.02mm to 0.04mm.

4. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the aluminum alloy conductor (8) is formed by twisting and compacting a plurality of aluminum alloy wires with the diameters of 0.08mm to 0.35mm to form a circular conductor structure.

5. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the nylon belt wrapping layer (3) is a nylon resin belt covering wrapping structure, and the covering rate is 15-20%.

6. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the thickness of the nylon tape wrapping layer (3) is 0.2mm to 0.5mm.

7. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the high-temperature glass fiber inner wrapping layer (4) and the high-temperature glass fiber outer wrapping layer (6) are formed by a plurality of high-temperature glass fiber wires in parallel spiral wrapping mode and are opposite in wrapping direction.

8. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the high-temperature fireproof belt wrapping layer (9) is of a high-temperature fireproof belt unidirectional spiral lapping and wrapping structure, and the high-temperature fireproof belt is of an integrated structure formed by bonding a polyethylene resin inner layer and a mica tape layer.

9. The armored marine low smoke and fire resistant aluminum alloy cable of claim 1, wherein: the lay length of the cable core is 10 to 15 times of the outer diameter of the power supply wire core (1).